1 description features 2.5v/3.3v/5v 1:2 differential pecl/lvpecl/ecl fanout buffer pin configuration/block diagram 1 2 3 45 6 7 8 q0 q1 vcc d vee /d /q0 /q1 v ee v cc v ee v cc 75k ? 75k ? 75k ? v ee 8-pin msop and soic packages ecl pro sy10ep11u SY100EP11U final 2.5v, 3.3v and 5v power supply options guaranteed ac parameters over temperature: ? max > 3.0ghz < 20ps output-to-output skew < 200ps t r /t f < 300ps propagation delay wide temperature range: ?0 c to +85 c available in 8-pin (3mm) msop and soic packages the sy10/100ep11u is a precision, high-speed 1:2 differential fanout buffer. having within-device skews and output transition times significantly improved over the el11v, the ep11u is ideally suited for those applications which require the ultimate in ac performance. the differential inputs of the ep11u employ clamping circuitry to maintain stability under open input conditions. if the inputs are left open, the q outputs will go low. rev.: d amendment: /0 issue date: march 2003 pin function d pecl, lvpecl, ecl, lvecl clock or data input: internal 75k ? pulldown resistor. if left floating, pin defaults low, q out goes low. /d pecl, lvpecl, ecl, lvecl complementary clock or data input: internal 75k ? pull-up and down resistors. if left open, default is v cc /2. when the input is not used, it can be left open. q0, /q0 pecl, lvpecl, ecl, lvecl outputs: q1, /q1 terminates to v cc ?v. v cc positive power supply: bypass with 0.1 f//0.01 f low esr capacitors. v ee negative power supply: for pecl operation, connect to gnd. pin names micrel semiconductor on semiconductor sy10ep11uzi/ki mc10ep11d/dt sy10ep11uzi/ki mc10lvep11d/dt SY100EP11Uzi/ki mc100ep11d/dt SY100EP11Uzi/ki mc100lvep11d/dt cross reference table ecl pro ecl pro is a trademark of micrel, inc.
2 ecl pro sy10ep11u SY100EP11U micrel symbol rating value unit v cc ? ee power supply voltage 6v v v in input voltage (v cc = 0v, v in not more negative than v ee ) ?.0 to 0 v input voltage (v ee = 0v, v in not more positive than v cc ) +6.0 to 0 v i out output current ?ontinuous 50 ma ?urge 100 t a operating temperature range ?0 to +85 c t store storage temperature range ?5 to +150 c ja package thermal resistance ?till-air (soic) 160 c/w (junction-to-ambient) ?00lfpm (soic) 109 ?till-air (msop) 206 c/w ?00lfpm (msop) 155 jc package thermal resistance (soic) 39 c/w (junction-to-case) (msop) 39 note 1. permanent device damage may occur if absolute maximum ratings are exceeded. this is a stress rating only and functional operat ion is not implied at conditions other than those detailed in the operational sections of this data sheet. exposure to absolute ma ximum ratlng conditions for extended periods may affect device reliability. absolute maximum ratings (1) t a = ?0 ct a = +25 ct a = +85 c symbol parameter min. typ. max. min. typ. max. min. typ. max. unit condition v cc power supply voltage v (pecl) 4.5 5.0 5.5 4.5 5.0 5.5 4.5 5.0 5.5 (lvpecl) 2.37 3.8 2.37 3.8 2.37 3.8 (ecl) ?.5 ?.0 ?.5 ?.5 ?.0 ?.5 ?.5 ?.0 ?.5 (lvecl) ?.8 ?.3 ?.37 ?.8 ?.3 ?.37 ?.8 ?.3 ?.37 i ee power supply current sy10ep11u 37 25 39 40 ma SY100EP11U 44 30 44 44 ma i ih input high current 150 150 150 av in = v ih i il input low current d 0.5 0.5 0.5 av in = v il /d ?50 ?50 ?50 av in = v il c in input capacitance (msop) 1.0 pf (soic) 1.35 pf note 1. 10/100kep circuits are designed to meet the dc specifications shown in the above table after thermal equilibrium has been estab lished. the circuit is in a test socket or mounted on a printed circuit board and traverse airflow greater than 500lfpm is maintained. dc electrical characteristics (1)
3 ecl pro sy10ep11u SY100EP11U micrel t a = ?0 ct a = +25 ct a = +85 c symbol parameter min. typ. max. min. typ. max. min. typ. max. unit condition v ol output low voltage 565 690 815 630 755 880 690 815 940 mv 50 ? to v cc ?v v oh output high voltage 1365 1490 1615 1430 1555 1680 1490 1615 1740 mv 50 ? to v cc ?v v ihcmr input high voltage (2) 1.2 v cc 1.2 v cc 1.2 v cc v common mode range (10kep) lvpecl dc electrical characteristics (1) v cc = 2.5v 5%, v ee = 0v t a = ?0 ct a = +25 ct a = +85 c symbol parameter min. typ. max. min. typ. max. min. typ. max. unit condition v il input low voltage 1365 1690 1430 1755 1490 1815 mv (single-ended) v ih input high voltage 2090 2415 2155 2480 2215 2540 mv (single-ended) v ol output low voltage 1365 1490 1615 1430 1555 1680 1490 1615 1740 mv 50 ? to v cc ?v v oh output high voltage 2165 2290 2415 2230 2355 2480 2290 2415 2540 mv 50 ? to v cc ?v v ihcmr input high voltage (2) 1.2 v cc 1.2 v cc 1.2 v cc v common mode range (10kep) lvpecl dc electrical characteristics (1) v cc = 3.3v 10%, v ee = 0v no te 1. 10kep circuits are designed to meet the dc specifications shown in the above table after thermal equilibrium has been establish ed. the circuit is in a test socket or mounted on a printed circuit board and traverse airflow greater than 500lfpm is maintained. inpu t and output parameters are at v cc = 2.5v. they vary 1:1 with v cc . note 2. the v ihcmr range is referenced to the most positive side of the differential input signal. see ?nput waveform?section. single-ended inp ut clk pin operation is limited to v cc 3.0v in pecl mode. note 1. 10kep circuits are designed to meet the dc specifications shown in the above table after thermal equilibrium has been establish ed. the circuit is in a test socket or mounted on a printed circuit board and traverse airflow greater than 500lfpm is maintained. inpu t and output parameters are at v cc = 3.3v. they vary 1:1 with v cc . note 2. the v ihcmr range is referenced to the most positive side of the differential input signal. see ?nput waveform?section. single-ended inp ut clk pin operation is limited to v cc 3.0v in pecl mode. t a = ?0 ct a = +25 ct a = +85 c symbol parameter min. typ. max. min. typ. max. min. typ. max. unit condition v il input low voltage 3065 3390 3130 3455 3190 3515 mv (single-ended) v ih input high voltage 3790 4115 3855 4180 3915 4240 mv (single-ended) v ol outuput low voltage 3065 3190 3315 3130 3255 3380 3190 3315 3440 mv 50 ? to v cc ?v v oh output high voltage 3865 3990 4115 3930 4055 4180 3990 4115 4240 mv 50 ? to v cc ?v v ihcmr input high voltage (2) 1.2 v cc 1.2 v cc 1.2 v cc v common mode range (10kep) pecl dc electrical characteristics (1) v cc = 5.0v 10%, v ee = 0v note 1. 10kep circuits are designed to meet the dc specifications shown in the above table after thermal equilibrium has been establish ed. the circuit is in a test socket or mounted on a printed circuit board and traverse airflow greater than 500lfpm is maintained. inpu t and output parameters are at v cc = 5.0v. they vary 1:1 with v cc . note 2. the v ihcmr range is referenced to the most positive side of the differential input signal. see ?nput waveform?section. single-ended inp ut clk pin operation is limited to v cc 3.0v in pecl mode.
4 ecl pro sy10ep11u SY100EP11U micrel t a = ?0 ct a = +25 ct a = +85 c symbol parameter min. typ. max. min. typ. max. min. typ. max. unit condition v il input low voltage ?935 ?610 ?870 ?545 ?810 ?485 mv (single-ended) v ih input high voltage ?210 ?85 ?145 ?20 ?085 ?60 mv (single-ended) v ol outuput low voltage ?935 ?810 ?685 ?870 ?745 ?620 ?810 ?685 ?560 mv 50 ? to v cc ?v v oh output high voltage ?135 ?010 ?85 ?070 ?45 ?20 ?010 ?85 ?60 mv 50 ? to v cc ?v v ihcmr input high voltage (2) v ee +1.2 0.0 v ee +1.2 0.0 v ee +1.2 0.0 v common mode range (10kep) ecl/lvecl dc electrical characteristics (1) v cc = 0v, v ee = ?.5v to ?.375v note 1. 10kep circuits are designed to meet the dc specifications shown in the above table after thermal equilibrium has been establish ed. the circuit is in a test socket or mounted on a printed circuit board and traverse airflow greater than 500lfpm is maintained. note 2. the v ihcmr range is referenced to the most positive side of the differential input signal. see ?nput waveform?section. single-ended inp ut clk pin operation is limited to v ee ?.0v in ecl/lvecl mode. t a = ?0 ct a = +25 ct a = +85 c symbol parameter min. typ. max. min. typ. max. min. typ. max. unit condition v ol outuput low voltage 555 680 805 555 680 805 555 680 805 mv 50 ? to v cc ?v v oh output high voltage 1355 1480 1605 1355 1480 1605 1355 1480 1605 mv 50 ? to v cc ?v v ihcmr input high voltage (2) 1.2 v cc 1.2 v cc 1.2 v cc v common mode range (100kep) lvpecl dc electrical characteristics (1) v cc = 2.5v 5% note 1. 100kep circuits are designed to meet the dc specifications shown in the above table after thermal equilibrium has been establis hed. the circuit is in a test socket or mounted on a printed circuit board and traverse airflow greater than 500lfpm is maintained. inpu t and output parameters are at v cc = 2.5v. they vary 1:1 with v cc . note 2. the v ihcmr range is referenced to the most positive side of the differential input signal. see ?nput waveform?section. single-ended inp ut clk pin operation is limited to v cc 3.0v in pecl mode. t a = ?0 ct a = +25 ct a = +85 c symbol parameter min. typ. max. min. typ. max. min. typ. max. unit condition v il input low voltage 1355 1675 1355 1675 1355 1675 mv (single-ended) v ih input high voltage 2075 2420 2075 2420 2075 2420 mv (single-ended) v ol output low voltage 1355 1480 1605 1355 1480 1605 1355 1480 1605 mv 50 ? to v cc ?v v oh output high voltage 2155 2280 2405 2155 2280 2405 2155 2280 2405 mv 50 ? to v cc ?v v ihcmr input high voltage (2) 1.2 v cc 1.2 v cc 1.2 v cc v common mode range (100kep) lvpecl dc electrical characteristics (1) v cc = 3.3v 10%, v ee = 0v note 1. 100kep circuits are designed to meet the dc specifications shown in the above table after thermal equilibrium has been establis hed. the circuit is in a test socket or mounted on a printed circuit board and traverse airflow greater than 500lfpm is maintained. inpu t and output parameters are at v cc = 3.3v. they vary 1:1 with v cc . note 2. the v ihcmr range is referenced to the most positive side of the differential input signal. see ?nput waveform?section. single-ended inp ut clk pin operation is limited to v cc 3.0v in pecl mode.
5 ecl pro sy10ep11u SY100EP11U micrel t a = ?0 ct a = +25 ct a = +85 c symbol parameter min. typ. max. min. typ. max. min. typ. max. unit condition v il input low voltage 3055 3375 3055 3375 3055 3375 mv (single-ended) v ih input high voltage 3775 4120 3775 4120 3775 4120 mv (single-ended) v ol outuput low voltage 3055 3180 3305 3055 3180 3305 3055 3180 3305 mv 50 ? to v cc ?v v oh output high voltage 3855 3980 4105 3855 3980 4105 3855 3980 4105 mv 50 ? to v cc ?v v ihcmr input high voltage (2) 2.0 v cc 2.0 v cc 2.0 v cc v common mode range (100kep) pecl dc electrical characteristics (1) v cc = 5.0v 10%, v ee = 0v note 1. 100kep circuits are designed to meet the dc specifications shown in the above table after thermal equilibrium has been establis hed. the circuit is in a test socket or mounted on a printed circuit board and traverse airflow greater than 500lfpm is maintained. inpu t and output parameters are at v cc = 5.0v. they vary 1:1 with v cc . note 2. the v ihcmr range is referenced to the most positive side of the differential input signal. see ?nput waveform?section. single-ended inp ut clk pin operation is limited to v cc 3.0v in pecl mode. t a = ?0 ct a = +25 ct a = +85 c symbol parameter min. typ. max. min. typ. max. min. typ. max. unit condition v il input low voltage ?945 ?625 ?945 ?625 ?945 ?625 mv (single-ended) v ih input high voltage ?225 ?80 ?225 ?80 ?225 ?80 mv (single-ended) v ol outuput low voltage ?945 ?820 ?695 ?945 ?820 ?695 ?945 ?820 ?695 mv 50 ? to v cc ?v v oh output high voltage ?145 ?020 ?95 ?145 ?020 ?95 ?145 ?020 ?95 mv 50 ? to v cc ?v v ihcmr input high voltage (2) v ee +1.2 0.0 v ee +1.2 0.0 v ee +1.2 0.0 v common mode range (100kep) ecl/lvecl dc electrical characteristics (1) v cc = 0v, v ee = ?.5v to ?.375v note 1. 100kep circuits are designed to meet the dc specifications shown in the above table after thermal equilibrium has been establis hed. the circuit is in a test socket or mounted on a printed circuit board and traverse airflow greater than 500lfpm is maintained. note 2. the v ihcmr range is referenced to the most positive side of the differential input signal. see ?nput waveform?section. single-ended inp ut clk pin operation is limited to v ee ?.0v in ecl/lvecl mode.
6 ecl pro sy10ep11u SY100EP11U micrel t a = ?0 ct a = +25 ct a = +85 c symbol parameter min. typ. max. min. typ. max. min. typ. max. unit condition f max max. toggle frequency (1) 3 3 3 ghz t plh propagation delay (differential) t phl d to q, /q 140 200 250 160 220 270 180 240 300 ps v cc = 3.3v/5v d to q, /q 170 230 300 180 240 310 210 270 360 ps v cc = 2.5v t skew within-device skew (2) q, /q 5 20 5 20 5 20 ps part-to-part skew (2) 130 130 150 ps v cc = 3.3v/5v 110 110 120 ps v cc = 2.5v t jitter cycle-to-cycle jitter (rms) 0.2 < 1 0.2 < 1 0.2 < 1 ps rms v diff input swing (3) 150 800 1200 150 800 1200 150 800 1200 mv t r, t f output rise/fall time 70 110 170 80 120 180 100 140 200 ps (20% to 80%) ac electrical characteristics v cc = 0v; v ee = ?.5v to ?.375v or v cc = 2.375v to 5.5v, v ee = 0v note 1. measured with 750mv input signal, 50% duty cycle. all loading with a 50 ? to v cc ?.0v. note 2. skew is measured between outputs under identical transitions. duty cycle skew is defined only for differential operation when t he delays are measured from the cross point of the inputs to the cross point of the outputs. note 3. see ?nput waveform. input waveform dv ihcmr /d v diff = 150mv to 1200mv
7 ecl pro sy10ep11u SY100EP11U micrel termination recommendations r2 82 ? r2 82 ? z o = 50 ? z o = 50 ? +3.3v +3.3v v t = v cc 2v r1 130 ? r1 130 ? +3.3v figure 1. parallel termination?hevenin equivalent note 1. for +2.5v systems: r1 = 250 ? , r2 = 62.5 ? note 2. for +5.0v systems: r1 = 82 ? r2 = 130 ? z = 50 ? z = 50 ? 50 ? 50 ? 50 ? +5.0v or +3.3v +5.0v or +3.3v source destination r b figure 2. three-resistor ??ermination note 1. power-saving alternative to thevenin termination. note 2. place termination resistors as close to destination inputs as possible. note 3. r b resistor sets the dc bias voltage equal to v t . for +3.3v systems r b = 46 ? to 50 ? . for +5v systems, r b = 110 ? . product ordering code ordering package operating package code type range marking sy10ep11ukc k8-1 commercial hp11 sy10ep11ukctr (1) k8-1 commercial hp11 SY100EP11Ukc k8-1 commercial xp11 SY100EP11Ukctr (1) k8-1 commercial xp11 sy10ep11uzc z8-1 commercial hep11u sy10ep11uzctr (1) z8-1 commercial hep11u SY100EP11Uzc z8-1 commercial xep11u SY100EP11Uzctr (1) z8-1 commercial xep11u note 1. tape and reel note 2. recommended for new designs. ordering package operating package code type range marking sy10ep11uki (2) k8-1 industrial hp11 sy10ep11ukitr (1, 2) k8-1 industrial hp11 SY100EP11Uki (2) k8-1 industrial xp11 SY100EP11Ukitr (1, 2) k8-1 industrial xp11 sy10ep11uzi (2) z8-1 industrial hep11u sy10ep11uzitr (1, 2) z8-1 industrial hep11u SY100EP11Uzi (2) z8-1 industrial xep11u SY100EP11Uzitr (1, 2) z8-1 industrial xep11u
8 ecl pro sy10ep11u SY100EP11U micrel 8 lead msop (k8-1) rev. 01
9 ecl pro sy10ep11u SY100EP11U micrel 8 lead soic .150" wide (z8-1) rev. 03
10 ecl pro sy10ep11u SY100EP11U micrel micrel, inc. 1849 fortune drive san jose, ca 95131 usa tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 web http://www.micrel.com the information furnished by micrel in this datasheet is believed to be accurate and reliable. however, no responsibility is as sumed by micrel for its use. micrel reserves the right to change circuitry and specifications at any time without notification to the customer. micrel products are not designed or authorized for use as components in life support appliances, devices or systems where malfu nction of a product can reasonably be expected to result in personal injury. life support devices or systems are devices or systems that (a) are intend ed for surgical implant into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant inj ury to the user. a purchaser s use or sale of micrel products for use in life support appliances, devices or systems is at purchaser s own risk and purchaser agrees to fully indemnify micrel for any damages resulting from such use or sale. ? 2003 micrel, incorporated.
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